The UK's ICO also has a good structured summary: https://ico.org.uk/for-organisations/guide-to-the-general-da...
In general I agree with the sentiments in this article. I've probably spent a total of three to four days reading around the GDPR and I don't really see what's special about this law other than it's imposing decent standards on what was in effect a wildly unregulated industry in people's personal data. If you have a broad distrust of any government activity then I suppose any new laws with "fines up to €X" might feel like "I run a small site on a Digital Ocean droplet and I'm at risk of a €2m fine out of the blue." But that doesn't make it true.
I want to stress that this is a major point of political polarization in Europe at the moment. Even if this claim is true, it warrants a clear and articulated defense.
It is irresponsible not to assume that if the law is written a certain way then at some point, the law can (and likely will) be enforced that way when it suits the government.
With the caveat that "the law" in this case isn't just the GDPR, it's the entirety of EU case law. GDPR exists in a particular legal context.